DEBIAN-CVE-2026-23831
Rekor is a software supply chain transparency log. In versions 1.4.3 and below, the entry implementation can panic on attacker-controlled input when canonicalizing a proposed entry with an empty spec.message, causing nil Pointer Dereference. Function validate() returns nil (success) when message is empty, leaving sign1Msg uninitialized, and Canonicalize() later dereferences v.sign1Msg.Payload. A malformed proposed entry of the cose/v0.0.1 type can cause a panic on a thread within the Rekor process. The thread is recovered so the client receives a 500 error message and service still continues, so the availability impact of this is minimal. This issue has been fixed in version 1.5.0.
DEBIAN-CVE-2026-23831
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-23831
rekor
Source reference: /affected/0/package/name
- Affected versions
- 1.3.10-1
Source reference:
/affected/0/versions1.3.9-1Source reference:
/affected/0/versions1.4.0-1Source reference:
/affected/0/versions1.4.2-1Source reference:
/affected/0/versions1.4.3-1Source reference:
/affected/0/versions1.5.0-1Source reference:
/affected/0/versions1.5.1-1Source reference:
/affected/0/versions1.5.2-1Source reference:
/affected/0/versions1.5.3-1Source reference:
/affected/0/versions1.5.3-2Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
rekor
Source reference: /affected/1/package/name
- Affected versions
- 1.3.10-1
Source reference:
/affected/1/versions1.3.9-1Source reference:
/affected/1/versions1.4.0-1Source reference:
/affected/1/versions1.4.2-1Source reference:
/affected/1/versions1.4.3-1Source reference:
/affected/1/versions - Fixed versions
- 1.5.0-1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rekor",
"purl": "pkg:deb/debian/rekor?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.3.10-1",
"1.3.9-1",
"1.4.0-1",
"1.4.2-1",
"1.4.3-1",
"1.5.0-1",
"1.5.1-1",
"1.5.2-1",
"1.5.3-1",
"1.5.3-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-23831.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5.0-1"
}
]
}
],
"package": {
"name": "rekor",
"purl": "pkg:deb/debian/rekor?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.3.10-1",
"1.3.9-1",
"1.4.0-1",
"1.4.2-1",
"1.4.3-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-23831.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #55879 · Revision 1
- Added to Heist Feed
- Publisher date